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Barker, Stephen; Kiefer, Thorsten; Elderfield, Henry (2004): Age determination of North Atlantic sediment cores [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.839105, Supplement to: Barker, S et al. (2004): Temporal changes in North Atlantic circulation constrained by planktonic foraminiferal shell weights. Paleoceanography, 19(3), PA3008, https://doi.org/10.1029/2004PA001004

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Abstract:
Records of planktonic foraminiferal shell weights for Globigerina bulloides, covering Termination I from four proximal sites at waters depths from 1150 to 4045 m in the northeast Atlantic, demonstrate the influence of dissolution superimposed upon initial shell weight variability. Records of shell weight, unaffected by dissolution, may be used as a reference for interpreting deeper records in terms of preservation history. Combining records of planktonic shell weight (and benthic d13C) from shallow and deep sites suggests that maximum oceanic stratification and incursion of southern sourced deep waters in the North Atlantic occurred at about 18-20 ka, defining the glacial mode of Atlantic circulation. Reduced stratification and enhanced preservation in deeper waters reflect conditions during Heinrich event 1. A state similar to the modern mode of Atlantic circulation was attained by about 10 ka.
Coverage:
Median Latitude: 54.028590 * Median Longitude: -21.650663 * South-bound Latitude: 50.687600 * West-bound Longitude: -23.901800 * North-bound Latitude: 59.789500 * East-bound Longitude: -16.501400
Date/Time Start: 1989-07-26T00:00:00 * Date/Time End: 1989-08-10T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets

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Datasets listed in this publication series

  1. Barker, S; Kiefer, T; Elderfield, H (2004): (Table 2) Age determination of sediment core BOFS5K. https://doi.org/10.1594/PANGAEA.839101
  2. Barker, S; Kiefer, T; Elderfield, H (2004): (Table 3) Age models of sediment cores BOFS8K, BOFS17K and NEAP-08K. https://doi.org/10.1594/PANGAEA.839103